Read this excerpt from The Call of the Wild, and consider the context clues.Apt scholar that he was, they were equally apt teachers, never allowing him to linger long in error, and enforcing their teaching with their sharp teeth.

Here, “apt” means skilled or quick to learn. The excerpt calls him an “apt scholar,” and says the other dogs were “apt teachers” who corrected his mistakes with their teeth. So the best choice is “skilled or capable.”

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